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mutative • Docs

mutative / create

Function: create()

create(baseState, callback, options) to create the next state

Example

import { create } from '../index';

const baseState = { foo: { bar: 'str' }, arr: [] };
const state = create(
  baseState,
  (draft) => {
    draft.foo.bar = 'str2';
  },
);

expect(state).toEqual({ foo: { bar: 'str2' }, arr: [] });
expect(state).not.toBe(baseState);
expect(state.foo).not.toBe(baseState.foo);
expect(state.arr).toBe(baseState.arr);

create(base, mutate, options)

create<T, F, O, R>(base, mutate, options?): CreateResult<T, O, F, R>

create(baseState, callback, options) to create the next state

Example

import { create } from '../index';

const baseState = { foo: { bar: 'str' }, arr: [] };
const state = create(
  baseState,
  (draft) => {
    draft.foo.bar = 'str2';
  },
);

expect(state).toEqual({ foo: { bar: 'str2' }, arr: [] });
expect(state).not.toBe(baseState);
expect(state.foo).not.toBe(baseState.foo);
expect(state.arr).toBe(baseState.arr);

Type Parameters

• T extends unknown

• F extends boolean = false

• O extends PatchesOptions = false

• R extends unknown = void

Parameters

• base: T

• mutate

• options?: Options<O, F>

Returns

CreateResult<T, O, F, R>

Defined in

create.ts:25

create(base, mutate, options)

create<T, F, O, R>(base, mutate, options?): CreateResult<T, O, F, R>

create(baseState, callback, options) to create the next state

Example

import { create } from '../index';

const baseState = { foo: { bar: 'str' }, arr: [] };
const state = create(
  baseState,
  (draft) => {
    draft.foo.bar = 'str2';
  },
);

expect(state).toEqual({ foo: { bar: 'str2' }, arr: [] });
expect(state).not.toBe(baseState);
expect(state.foo).not.toBe(baseState.foo);
expect(state.arr).toBe(baseState.arr);

Type Parameters

• T extends unknown

• F extends boolean = false

• O extends PatchesOptions = false

• R extends void | Promise<void> = void

Parameters

• base: T

• mutate

• options?: Options<O, F>

Returns

CreateResult<T, O, F, R>

Defined in

create.ts:25

create(mutate, options)

create<T, P, F, O, R>(mutate, options?): (base, ...args) => CreateResult<T, O, F, R>

create(baseState, callback, options) to create the next state

Example

import { create } from '../index';

const baseState = { foo: { bar: 'str' }, arr: [] };
const state = create(
  baseState,
  (draft) => {
    draft.foo.bar = 'str2';
  },
);

expect(state).toEqual({ foo: { bar: 'str2' }, arr: [] });
expect(state).not.toBe(baseState);
expect(state.foo).not.toBe(baseState.foo);
expect(state.arr).toBe(baseState.arr);

Type Parameters

• T extends unknown

• P extends any[] = []

• F extends boolean = false

• O extends PatchesOptions = false

• R extends void | Promise<void> = void

Parameters

• mutate

• options?: Options<O, F>

Returns

Function

Parameters

• base: T

• ...args: P

Returns

CreateResult<T, O, F, R>

Defined in

create.ts:25

create(base, options)

create<T, O, F>(base, options?): [Draft<T>, () => Result<T, O, F>]

create(baseState, callback, options) to create the next state

Example

import { create } from '../index';

const baseState = { foo: { bar: 'str' }, arr: [] };
const state = create(
  baseState,
  (draft) => {
    draft.foo.bar = 'str2';
  },
);

expect(state).toEqual({ foo: { bar: 'str2' }, arr: [] });
expect(state).not.toBe(baseState);
expect(state.foo).not.toBe(baseState.foo);
expect(state.arr).toBe(baseState.arr);

Type Parameters

• T extends unknown

• O extends PatchesOptions = false

• F extends boolean = false

Parameters

• base: T

• options?: Options<O, F>

Returns

[Draft<T>, () => Result<T, O, F>]

Defined in

create.ts:25